UNIT 6POISONOUS AIR AND CANCER, BUT NO ONE WANTS TO TRAVEL ON FOOT OR...

1. - You can’t visit the United States unless you get a visa.a. My classmate was given this book by me.a. You can’t visit the United States if you get a visa.b. This book was given me by my classmate.b. If you don’t get a visa, you can’t visit the United States. c. This book was given to my classmate by me.c. Although you get a visa, you can’t visit the United States.d. I was given this book by my classmate.